Unit 5: hearing assessment

Question 1

Audiometer

Answer 1

measure hearing sensitivity (dB HL)

Question 2

transducer

Answer 2

converts energy from one form to another

Question 3

Sound - treated room

Answer 3

room that is double walled, double doored, incandescent lighting, dampened ventilating system, floor suspended and carpeted

Question 4

anechoic chamber

Answer 4

soundproof room, used for research

Question 5

calibration

Answer 5

ensuring the instrument is producing the correct intensity

Question 6

factory calibration

Answer 6

compares HL reading from audiometer with SPL reading on sound level meter, yearly

Question 7

Sound level meter

Answer 7

measures noise level in room

Question 8

biologic check

Answer 8

daily, checking to make sure changes are being made in relation to the audiometer

Question 9

case history

Answer 9

set of questions to obtain background information on a patient

Question 10

otoscopy

Answer 10

the visual inspection of the external ear canal and tympanic membrane

Question 11

otoscope

Answer 11

instrument used for otoscope (light)

Question 12

modified Hughson-westlake procedure

Answer 12

ascending-descending procedure to the bracketing technique to find thresholds

Question 13

threshold

Answer 13

softest sound that can be heard 50% of the time
minimum number of responses needed to determine the threshold of hearing is two responses out of three presentations at single level

Question 14

bone conduction

Answer 14

no decreasing between ears because they both pick up the sound

Question 15

steps in pure tone testing

Answer 15

case history
otoscope
instructions
threshold search
bone conduction threshold search
speech testing

Question 16

headphones

Answer 16

air conduction pathway
determines how much hearing loss

Question 17

bone oscillator

Answer 17

bone conduction pathway
determines what kind of hearing loss

Question 18

masking

Answer 18

introduction of noise to the non test ear to ensure that responses are coming from the test ear

Question 19

Normal hearing loss

Answer 19

0-20 db

Question 20

mild hearing loss

Answer 20

20-40 db

Question 21

moderate hearing loss

Answer 21

40-60 db

Question 22

moderately severe hearing loss

Answer 22

60-70 db

Question 23

severe hearing loss

Answer 23

70-90 db

Question 24

Profound hearing loss

Answer 24

90+ db